To find the length of the missing side, you can use the Pythagorean Theorem, which you can only use for right triangles.
Pythagorean Theorem: a² + b² = c²
[ c is the hypotenuse or the longest side of the triangle, and a and b are the other sides, I think it doesn't matter which side ]
Plug in what you know:
b = 8
c = 14
a² + b² = c²
a² + (8)² = (14)²
a² + 64 = 196 Subtract 64 on both sides
a² = 132 Square root both sides to get "a" by itself
a = inches
If you need to simplify more, you need to find two numbers that multiply to = 132 where one of them can be square rooted, to do so you can list the greatest common factors of 132
132: 1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 132
The only number that can be square rooted is 4, so you can do:
Answer:
4cm + 2.8cm +4cm = 10.8 cm
Step-by-step explanation:
Formula Perimeter is A+B+C
First, you need to change the 28 mm to cm (move decimal once space to the left making 28mm to 2.8 cm)
Next, add all your sides that are now in the same format of cm
4 +2.8 +4=10.8 cm
A- 212.5
B- 47.1
C.34
D.45
the answer is A.
212.5(0.40) = 85
A) 24° B) 31° C) 66° D) 90°
All angles of a rectangle is right angled or 90°.
C) 66°
Given:
∠KJN= 24°
Thus,
∠MJN+∠KJN=90°
∠MJN = (90-24)°
∠MJN = 66°
Therefore, correct option is C.
Find more information about diagonals here:
Step-by-step explanation:
all the angles of the rectangle are right angle
therefore, angle MJK=90°
∠MJN+∠KJN=90°
∠MJN = (90-24)° = 66°