A triangle and a parallelogram have the same base and the same area if the sides of the triangle are 26,28and 30cm and the parallelogram stands on the base 28cm find the height of the parallelogram

step-by-step explanation:

subtract 7, so the answer is x < = 3, or c.

step-by-step explanation:

what grade level is this? need to know so i can look in my old textbooks!

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.

25.3

step-by-step explanation:

1st step

add 3+6

=9

multipy 9*3

=37