# math

posted by .

The area of a parallelogram is 420 centimeters squared and the height is 35 cm. Find the corresponding base. Be sure to show all work and label your answer

• math -

A = b * h

420 = 35h

420/35 = h

• math -

can you help with this one
Find the area of the regular polygon. Round your answer to the nearest tenth.
the individual sides are 10 the radius is 13.07

• math -

I did not answer this earlier because it makes no sense. A regular polygon is not a circle and has no radius. Do you mean a circle passing through the midpoints of the sides or through the corners or what ?

• math -

http://www.mathsisfun.com/geometry/regular-polygons.html

• math -

Find the area of the regular polygon. Round your answer to the nearest tenth.

Question 18 (2 points)
Find the area of the regular polygon. Round your answer to the nearest tenth.

a 673.3 inches squared
b 483.2 inches squared
c 336.6 inches squared
d 966.4 inches squared

the 10 is alone the outside of one of the sides and there is a dot in center and a dashed line that goes to one segmement. is is 13.07

• math -

10 = 2* 13.07 sin (180/n)
sin (180/n) = .382555
180/n = 22.5
n = 8 sides
360/8 = 45 = top angle of each isoceles triangle
half of that has hpotenuse of 13.07 and base of 5
area of each of those 16 triangles = (1/2) (5)(13.07 cos 22.5) = 30.2
16*30.2 = 483

## Similar Questions

1. ### Algebra

Ok, so then does this look correct? -Find the area of a triangle in which the base measures 8.5 centimeters and the height measures 3 centimeters less than the base.- My answer: Area= 23.375cm squared (if you would like, I could show
2. ### Algebra

Please look over- 1.) Find the area of a rectangle in which the base measures 20 centimeters and the height is half the length of the base. My Answer= area= 200cm squared 2.) Find the area of a parallelogram in which the height measures …
3. ### Math

The altitude of a triangle is increasing at a rate of 2500 centimeters/minute while the area of the triangle is increasing at a rate of 4500 square centimeters/minute. At what rate is the base of the triangle changing when the altitude …

how do you work out this problem, find the height of a parallelogram with an area of 224 square meters and a base of 16 meters.show work please thank you
5. ### geometry

the area of a parallelogram is 36 in squared and its height is 3 in . How long is the corresponding base?
6. ### math

A parallelogram has an area of 8x^2 - 2x -45. The height of the parallelogram is 4x + 9. I know the formula for a parallelogram is A=bh. Please work and explain how I get the length of the base of the parallelogram. Thanks
7. ### math --- pls check my work!

help pls asap!!! Check my work! 1. Find the area for the following figure. (trapazoid: bottom base 16.3, top base 5.9, height 4.6) 51.06 m^2*** 74.98 m^2 27.14 m^2 102.12 m^2 2. Find the area for the following figure. (1 point) (triangle: …
8. ### SBVC

The formula for the area of a parallelogram is A = bh. The area of the parallelogram in the illustration is 300 square centimeters. If its base is three times its height, how long is the base?
9. ### Math

The base of a parallelogram is 9.5 centimeters and its height is 11.5 centimeters. What is the area of the parallelogram?
10. ### Math

A square and a parallelogram have the same area. If a side of the square is 40m and the height of the parallelogram is 20m, find the length of the corresponding base of the parallelogram.

More Similar Questions