Because ∠C=∠F = 90⁰,
BC and EF are corresponding legs of these triangles. Also, ∠B = ∠E.
So, we have congruent corresponding legs, that are included between right angle and given angle, and corresponding congruent angles, so
we need to use LA (leg-angle) theorem.
Answer:
B.405 cm2
Step-by-step explanation:
12 times 15 is 315. The area of the rectangle is 315.
The area of the triangle is 90.
Add them and i got 405.
Answer:
x = 5
Step-by-step explanation:
(7x + 16) = 90 - 39
7x + 16 = 51
7x = 51 - 16 = 35
x = 5
I'd arbitrarily begin by writing the factors 10 and 16. These, in turn, factor to 2 and 5. That's all we need to do here to form the product 160, using 5 once and 2 several times:
160 = 5 * 2^5