Find the value of x. please help me with my test
1 answer:
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Answer:
12.5 in^2
Step-by-step explanation:
25=2(3.14)r
25=6.28r
Divide by 6.28 on both sides:
3.98089172=r
Now use :
12.5 in^2
Answer:
60 & 55
Step-by-step explanation:
1. the sum of the angles 1; 2 and 3 is 180°, then
m∠1=m∠2=m∠3; ⇒m∠3=60°;
2. m∠3=m∠r; ⇒ m∠r=60°;
3. m∠α= 180-(m∠r+65°)°; ⇒ m∠α=55°
all the details are in the picture.
