Akite was broken into two triangles of the same size and shape . the area of each triangle is ? square centimeters 20,40,80,160 the total are of the kite is ? square centimeters 40,80,160,320

ANSWER

Each triangle:40 cm²

Kite : 80cm²

EXPLANATION

The area of a triangle is

The height of the triangle is

and the base is 16 cm.

The area of each triangle is

2. The total area of the kite is 2 times the area of one triangle.

hello from mrbilldoesmath!

answer:

25x^2 + 90x + 84

discussion:

mn(x) = m(n(x)) = m( 5x + 9) =

(5x + 9)^2 + 3 =>

25x^2 + 90x + 9^2 + 3 =

25x^2 + 90x + 84                 (as 9^2 = 9*9 = 81)

which is the second choice

regards,  

mrb

p.s.   i'll be on vacation from friday, dec 22 to jan 2, 2019. have a great new year!