Posted by **c** on Wednesday, July 4, 2007 at 12:51pm.

ABC is a right-angled triangle atB. AB=(3x+2)cm and BC=2CM.GIVEN THAT THE AREA OF THE TRIANGLE IS 85CM SQUARE FIND THE VALUE OF X.

Say that the

height= 3x+2

base= 2

Area of a triangle equals 1/2 base times height

so...

(1/2) of the base is 1

and 1 times the height (3x+2) is 3x+2

Since the area equals 3x+2 and 85 you can set those numbers equal to each other to solve for x

3x+2=85

See if you can solve for x from this point

Just ask if you need any more help :-)

## Answer This Question

## Related Questions

- math - i have trouble finding the answer to this and how to srt. there is a ...
- geometry - the area of a triangle is 338 square yards. the height of the ...
- math - B . . . . . . . . . . . . . . C A Triangle ABC is right angled at A. The...
- Math - The area A of a triangle is given by the formula A=1/2bh If the base of ...
- Math - The area A of a triangle is given by the formula A=1/2bh If the base of ...
- geometry - the area of a triangle is 27 square feet. its height is three times ...
- honors algebra - the area of a triangle is 105 square feet. the height is two ...
- geometry - If the height of a triangle is one inch more than twice its base, and...
- Algebra - How do you find the area of a shaded area in a triangle and assume the...
- Pre algebra - find the area of the triangle with base 2 1/5 yards and height 5/8...

More Related Questions