M∠A = 133°.
Opposite angles in an inscribed quadrilateral are supplementary, so we have
(4x+5)+(x+15) = 180
Combining like terms gives us
5x + 20 = 180
Subtract 20 from both sides:
5x+20 - 20 = 180 - 20
5x = 160
Divide both sides by 5:
5x/5 = 160/5
x = 32
Substitute this into our expression for ∠A:
4(32) + 5
128 + 5
133
Answ For Lateral Area : When all the side faces are the same: Multiply the perimeter by the "slant length" and divide by 2. This is because the side faces are always triangles and the triangle formula is "base times height divided by 2"er:
Step-by-step explanation:
This pattern is adding the next odd number, starting with 3. For example, we can use the first few numbers:
1 + 3 = 4
4 + 5 = 9
9 + 7 = 16
This means that when we reach 49, we have to add 17 into it to get the answer of 66.
Answer:
I can't see the problem
Step-by-step explanation:
Answer:
B. The radius
Step-by-step explanation:
The area of a sector of a circle is ½ r² ∅, where r is the radius and ∅ the angle in radians subtended by the arc at the centre of the circle so we need to know the radius for it