Answer:
Step-by-step explanation:
12 + 4b = 72
Subtract 12 on both sides
4b = 60
b = 15
Suppose the zeroes are a , b so
Answer:
∠ QPR = 64.5°
Step-by-step explanation:
The chord- chord angle QPR is half the sum of the arcs intercepted by the angle and its vertical angle, then
∠ QPR =
(QR + ST ) =
(98 + 31)° = 0.5 × 129° = 64.5°
Answer:
1820mm²
Step-by-step explanation:
Yan sa na makatulong