The isosceles triangle theorem states that if two sides of a triangle are congruent, then the angles those sides are congruent.

The isosceles triangle theorem states that if two sides of a triangle are congruent, then the angles  opposite to those sides are congruent.

Step-by-step explanation:

Isosceles triangle theorem : If two sides of a triangle are congruent , then the angles opposite to these sides are congruent.

Consider an isosceles triangle ABC

Let D is the midpoint of  triangle BC

Then, BD=CD

AD=AD[Reflexive Property ],

AB=AC [Definition of isosceles triangle]

Therefore, by SSS postulate ,

ΔADB≅ΔADC

Since corresponding parts of congruent triangles are congruent,  

∴ ∠B≅∠C   Hence Proved

Therefore, The isosceles triangle theorem states that if two sides of a triangle are congruent, then the angles  opposite to those sides are congruent.

$450.00 for 6 weeks

or

$300

step-by-step explanation:

$200.00 for first week $50.00 x5 equals $250 plus $200 equals $450.00 for six weeks.

$200 for first week

$200 x 0.10 = $20

$20 x 5 = $100

$200 + $100 = $300