What is the value of x? Enter your answer in the box.

Mathematics

2 answers:

77julia77 [94]3 years ago

7 0

Answer:

Step-by-step explanation:

a circle is sum up to 180 degrees

180- 39- 102= 39

tino4ka555 [31]3 years ago

5 0

39 because the triangle is equivalent to 180 so you add 102+39 and get 141 then you subtract 180 from 141 and you get 39

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A triangle with sides 11m , 13m and 18m is a right triangle. A True B False

Julli [10]

$\bold{\huge{\pink{\underline{ Solution}}}}$

$\bold{\underline{ Given :-}}$

A triangle with sides 11m, 13m and 18m

$\bold{\underline{ To \: Find :-}}$

We have to check it whether it is right angled triangle or not?

$\bold{\underline{ Let's \: Begin :-}}$

$\sf{\red{ In \:right \:angled\ : triangle, }}$

According to the Pythagoras theorem, The sum of the squares of perpendicular height and the square of the base of the triangle is equal to the square of hypotenuse that is sum of the squares of two small sides equal to the square of longest side of the triangle.

We imply it in the given triangle ,

$\sf{\red{ ( Perpendicular)² + (Base)² = (Hypotenuse)²}}$