Chapters 7-8 Test Review

Question 1

What are the formulas for a 45-45-90 triangle?

Answer 1

L sub 1 = L sub 2
H = L squqre root 2

Question 2

What is the formula for a 30-60-90 triangle?

Answer 2

H = 2SL
LL = SL square root 3

Question 3

In a right triangle, the sum of the squares of the legs is equal to the square of the hypotenuse.

Answer 3

In a right triangle, the sum of the squares of the legs is equal to the square of the hypotenuse.

Question 4

What is the short cut diag equation?

Answer 4

d = the square root of l square plus width squared plus height squared

Question 5

Name four Pythagorean triples.

Answer 5

3-4-5
5-12-13
7-24-25
8-15-17

Question 6

If a squared + b squared is > c squared then the triangle is…

Answer 6

Acute

Question 7

If a squared + b squared is = c squared then the triangle is…

Answer 7

Right

Question 8

If a squared + b squared is < c squared then the triangle is…

Answer 8

Obtuse

Question 9

What are the two geometric mean formulas?

Answer 9

HS1/Alt = Alt/HS2
Hyp/L = L/AHS