Question

45-45-90 triangúlese shown

Help please


Will give u points

Answer 1

Explanation:

from the figure we understand that it is an isosceles right triangle, two equal angles and two equal sides, so x has the value 7, we solve with Pythagoras

x = 7

y = √ (7² + 7²)

y = √(49 + 49)

y = √98

y = 9.9

Answer 2

x = 7 , y = 7
`√(2)`

Explanation:

A 45- 45- 90 triangle is an isosceles right triangle with the 2 legs being congruent , that is

x = 7

Using Pythagoras' identity in the right triangle, then

y² = 7² + 7² = 49 + 49 = 98 ( take square root of both sides )

y =
`√(98)` =
`√(49(2))` =
`√(49)` ×
`√(2)` = 7
`√(2)`