Cos A will be 60°.
Because When, cos is 1/2 then theta or angle is degree 60°
Answer:
x= 5
Step-by-step explanation:
image attached.
hope it helps!
Opposite angles of inscribed quadrilaterals are supplementary.
That means ∠D + ∠B = 180°
So, we can substitute in the given values.
(4x + 3) + (2x + 3) = 180
Solve for x.
4x + 3 + 2x + 3 = 180
6x + 6 = 180
6x = 174
x = 29
We know ∠C = 2x + 1, so we can substitute our value of x in.
∠C = 2x + 1
∠C = 2 * 29 + 1
∠C = 58 + 1
∠C = 59°
5/8 + 3/10
Multiple both 8 and 5 by 5
Multiple both 10 and 3 by 4
25/40 + 12/40 = 37/40