They aren't similar because they're not proportional (the sides do not form equal ratios)<span />
She can find out answer by dividing 21÷3 and the answer is 7
She can make 7 bird house
1)Obtuse Triangle: A triangle with one obtuse angle.
2)Acute Triangle: A triangle where all three angles are acute.
3)Equiangular Triangle: A triangle where all the angles are congruent.
4)Isosceles Triangle: A triangle with at least two congruent sides.
5)Equilateral Triangle: A triangle with three congruent sides
Answer: negative square root of two over 2 and tan theta is -1
Step-by-step explanation:
Did it on edge and got it right
