Can someone please help I will give brainliest if answer is right and 30 points no links please

143°

Step-by-step explanation:

The sum of angles in a triangle should be 180, so ∠1 = 180-53-90 = 37.

∠1 and ∠3 should add up to 180, so ∠3 must be 180-37 = 143.

143

Step-by-step explanation:

if m(1) = 53

in triangle EDF , all angles sum is 180

90 +  53 + m(2) = 180

m(2) = 180-143

= 37

m(2) + m(3) = 180 as it is straight line

m(3) = 180 - 37

= 143

c. 27 units.

step-by-step explanation:

we are told that in circle a, ∠bae ≅ ∠dae.

we can see from our given diagram that in and ;

, as these are radii of our given circle.

therefore, by sas congruence postulate.

hence, side be will be equal to side de as corresponding parts of congruent triangles are congruent. so we can set an equation to find the value of x as:

now let us substitute x=17 in the expression for the length of be.

therefore, length of be will be 27 units and option c is the correct choice.