7 twenty eight minus twenty one equal 7
It 's an isosceles triangle if you look carefully. 2 Sides of the triangle are equal which is denoted by those marks. The angles opposite to the equal sides are always equal, so: ![m\angle FST = 64^\circ](https://tex.z-dn.net/?f=m%5Cangle%20FST%20%3D%2064%5E%5Ccirc)
By angle sum property, ![m\angle TFS = 180 - 2 * 64 = 180 - 128 = 52^\circ](https://tex.z-dn.net/?f=m%5Cangle%20TFS%20%3D%20180%20-%202%20%2A%2064%20%3D%20180%20-%20128%20%3D%2052%5E%5Ccirc)
52 degrees is the answer: Option D :D
That is an isosceles triangle since the 2 sides are the same length. If those 2 sides are the same length, by the Isosceles Triangle Theorem, the angles across from those sides are congruent to each other. That means that both those base angles measure whatever x is. According to the Triangle Angle-sum Theorem, the angles of a triangle all add up to equal 180. We have the vertex angle as 38 degrees, meaning that there is 180 - 38 degrees left to split between the 2 base angles. 180 - 38 = 142, and 142 divided in half is 71. x measures 71 degrees.
Answer:
6n - 1.
Step-by-step explanation:
Arithmetic sequence.
a1 = 5, d = 6.
nth term = a1 + d(n - 1)
= 5 + 6(n - 1)
= 5 + 6n - 6
= 6n - 1.
18.85 inches tall I believe. Tell me if am wrong