Answer:
X = 5 unit
Step-by-step explanation:
Given as , ABC is a Triangle ,
AC extended to through C to D
∠BAC = 6x + 10
∠ABC = 6x - 10
∠BCD = ∠ 8x + 20
When c extended to D then , ∠BCD is an external angle
∵ <u>External angle = Sum of opposite internal angles</u>
Or ,∠BCD = ∠BAC + ∠ABC
Or, ∠ 8x + 20 = 6x + 10 + 6x - 10
Or, ∠ 8x + 20 = 12x
Or, 12x - 8x = 20
∴ 4x = 20
So, x =
= 5
Hence the value of X = 5 unit Answer
<u>Answer:</u>
8cm
<u>Explanation:</u>
If the 16 cm is the diameter then the radius is 8 cm
D(X+2)(2X+1) This is your answer.
180-98=82 so 82 degrees is the answer
Divide the shape into a rectangle and a triangle.
A(rectangle) = bh
A = 8*3
A = 24
A (triangle) = (bh)/2
A = (3*3)/2
A = 4.5
24 + 4.5 = 28.5