Answer:
∠CED = 15° .
Step-by-step explanation:
Given : Figure .
To find : What is the measure of ∠CED.
Solution : We have given Two triangle ABC and CDE.
We need to measure of ∠CED.
In triangle CDE , Angle ∠DCE = 90 °.
∠CDE = 75°.
By the angle sum property of the triangle : Sum of all the triangle is 180°.
∠CED + ∠CDE +∠DCE = 180 .
Plug the values
∠CED + 75 + 90 =180 .
∠CED + 165 = 180 .
on subtracting both sides by 165.
∠CED = 180 - 165 .
Therefore, ∠CED = 15° .
Get a calculator a graphing calculator and insert each one of those in it
triangle A
the area is 16cm²
8×4/2 = 32/2 = 16
Answer Is A
Hopefully this help
