Can someone me with this one and write the step by step explanation .

calculate the length of side a (watch the piccture of the triangle)

in

➷ As the two lengths are a, this means it is an isosceles triangle.

The two unknown angles would be equal so we can calculate them:

(angles in a triangle equal 180 degrees)

(180 - 90) / 2 = 45

Now we can use the sine rule to calculate the length a

(6 / sin(90)) x sin(45) = a

a = 4.242640687

To one decimal place, your answer would be:

a = 4.2mm

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

↬ ʜᴀɴɴᴀʜ ♡

(angles in a triangle add to 180 degrees)

(180 - 90) / 2 = 45

Use the sine rule to calculate the length a

(6 / sin(90)) x sin(45) = a

a = 4.242640687

a = 4.2 mm (This answer is to 1 decimal place)

cant open file sorry!

step-by-step explanation: