Answer:
b=120
c=60
d=60
Step-by-step explanation:
Vertical angles are congruent . 180-120= 60. Sorry the explanation isn't that good.
Answer:
Therefore,
Length of IG is 16 units.
Step-by-step explanation:
Given:
ΔGHI
∠I ≅ ∠H
GH = 16
HI = 5
To Find:
IG = ?
Solution:
In ΔGHI
∠I ≅ ∠H ..............Given
Base angles are equal.
∴ ΔGHI is an Isosceles Triangle
∴ GH ≅ IG .............Property of an Isosceles Triangle
But GH = 16 ...Given
∴ IG = 16 .........Transitive Property
Therefore,
Length of IG is 16 units.
Answer:
53.58in.
Step-by-step explanation:
17 x 3.14
circumference = pi x Diameter
Answer:
None of the pairs of expressions are equal
Step-by-step explanation:
• 2n ≠ 2 +n
2n is the same as 2 times of n (expressed as a multiplication sign), while 2 +n is the addition of 2 to n.
•n² ≠ 2n
n²= n ×n
2n= 2 ×n
• 2n² ≠ (2n)²
Note that in the latter, there is a bracket which means that the square applies to both 2 and n.
(2n)²
= (2)² × n²
= (2 ×2)(n²)
= 4n²
Thus, none of the pairs of expressions are equal.