Answer:
Angles ∠B and ∠C are complementary, not supplementary.
Answer:(5,3)
Step-by-step explanation:
(x,y)
so its 5 to the left and 3 up
x=70
it's 70 because 50 and 20 is proportional to x
(2a + 1)(a + 3) = 2a² + 7a + 3
There are 6 equilateral triangles
you get an isosceles triangle
the height of the equilateral triangle is 4
this is all I have so far :)
