Answer:
sin∅ = 0.7311
Step-by-step explanation:
Pythagorean Theorem: a² + b² = c²
sin∅ = opposite/hypotenuse
Step 1: Find our hypotenuse
14² + 15² = c²
c = √421
Step 2: Find sin∅
sin∅ = 15/√421
sin∅ = 0.731055
Answer:
in term of x
Step-by-step explanation:
Given that AB is tangent to a circle with center O and radius of OC=OB
D is the mid-point of the chord BC and D is 90
Here, Angle BAC = x.
From figure,
AC is a straight line.
we can write as

Since D is the mid-point of the chord BC
We know,
Angle opposite to sides are congruent

So,


Now, In triangle AOB

Therefore,


Therefore.





Thus, 
Answer:
Step-by-step explanation:
20 + 6 + 30 + 6
or
10(2) + 6(2) + 15(2)
or
25 + 37
The point (-1, -4) lies in the third quadrant