The total angle sum of a triangle is 180°
As such, 180= 78 + 2s +4s
102= 6s
s=17
The area of a circle is pi times the radius squared
Answer:
64cm2
Step-by-step explanation:
(32÷4)=8
8×8=64cm2
9514 1404 393
Answer:
x = 31
Step-by-step explanation:
The sum of angles in a triangle is 180°.
98° +51° +x° = 180°
x° = 31° . . . . . . . . . . . . subtract 149°
x = 31
