Given:
In triangle DEF, and .
To find:
The measure of angle EFD.
Solution:
In triangle DEF,
(Given)
It means triangle DEF is an isosceles triangle.
(Base angles of an isosceles triangle are equal)
Using angle sum property in triangle DEF, we get
Divide both sides by 2.
Therefore, the measure of angle EFD is 41 degrees.
This is the concept of trigonometry, the value of x will be calculated as follows;
sin theta=[opposite]/[hypotenuse]
theta=x
opposite=16 units
hypotenuse=21 units
thus;
sin x=16/21
hence;
x=arcsin(16/21)
x=49.63
x=50 (to the nearest degrees)
Answer:46%
Step-by-step explanation:
Its less than
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