Atriangle has two angles measuring 69 and 77. determine the measure of the third angle b

Step-by-step explanation:

Given measures of 2 angles of a triangle :

m∠A = 69°

m∠C = 79°

Find m∠B.

We know that sum of angles of a triangle =180°

So, we have

Substituting the vales of m∠A = 69° and m∠C = 79°

Adding like terms.

Subtracting both sides by 146°.

∴ (Answer)

the answer is simply just 6n add the two together as they have an n

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.