B^2 = c^2 - a^2
b^2 = 20^2 - 13^2
b^2 = 400 - 169
b^2 = 231
b= square root 231
b = 15.2
Answer:
30 cm.
Step-by-step explanation:
Draw a line from R perpendicular to PQ to meet PQ at T.
RQT forms a right-angled triangle with RT = SP = 15.
So tan 36.87 = RT / TQ
tan 36.87 = 15 / TQ
TQ = 15 / tan 36.87
= 20 cm.
Now PT = SR = 10, so
PQ = 10 + 20
= 30 cm.
Answer:
B, 1/64
Step-by-step explanation:
= 8
= 
= 
Hope it help
5 sevens go into 37 without going over
