Answer:
Yes
Step-by-step explanation:
3 , 4 & 5 are Pythagorean Triplet numbers. When lengths of a triangle's 3 sides are Pythagorean Triplet , the triangle is a right angled triangle.
The triangle will be a right angled triangle only when the hypotenuse will have length of 5 and other 2 sides will have length of either 3 or 4.
= (5x - 3x) + (2x - x)
= 2x + x
= 3x
Note: 1x is the same as ‘x’
1x = x
Answer:
18.4°
Step-by-step explanation:
Use law of cosine.
a² = b² + c² − 2bc cos A
11² = 20² + 28² − 2(20)(28) cos A
121 = 1184 − 1120 cos A
cos A = 0.949
A = 18.4°
Answer:
The simplified fractional equivalent is 
Step-by-step explanation:
we know that
A <u><em>terminating decimal</em></u> is a decimal that ends. So, it's a decimal with a finite number of digits.
we have
Let
Multiply by 100 both sides
Divide by 100 both sides
Simplify
Divide by 25 both numerator and denominator
