Posted by vero on .
these is another one the width of a rectangular picture is one half the length. the perimeter of the rectangle is 72inches.Find the length of the picture.
2L+2w=72
2L(1/2)+2w=72
2L(5)+2w=72
10L+2w=72
12L+72
L=72
L=12/72
L=6
If width is 1/2 the length, then w = 1/2L.

Basic geometry 
shirley,
Basic Geometry
1.
Find the perimeter of a rectangle 19 cm long by 27.8 cm wide.
22
2.
In triangle ABC, angle A = 47°, and angle B = 8°. Find angle C.35
3.
Find the perimeter of a triangle with sides of length 28 cm, 47 cm and 19 cm.
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4.
In triangle FGH, angle F = 32°, and angle G = 100°. Find angle H.165
5.
Find the circumference of a circle whose radius is 27 in.
(use 3.14 for π).32.0
6.
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7.
Find the area of a triangular piece of cloth that has a 18 cm base and is 24 cm high.43
8.
Find the area of a circle with a radius of 39 cm (use 3.14 for π).20
9.
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10.
Find the area of the triangle with a base of 27 ft and height of 24 ft:
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Find the volume of the box:
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13.
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14.
Find the volume of a cylinder that is 15 in. high and has a 10 in. radius.2
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