Answer:
The area of triangle is 
Step-by-step explanation:
Let
B -----> the measure of the vertex angle of the isosceles triangle ABC
a and c -----> the two congruent sides of the isosceles triangle ABC
we know that
The area of a triangle applying the law of sines is equal to

we have


substitute in the formula


Answer:
one
Step-by-step explanation:
they meet at only one point, thus their system of equations has as solution only those coordinates.
Answer:
45/1
Step-by-step explanation:
90/2=45/1
45*2=90
Answer:
300 squared feet.
Step-by-step explanation:
Area of a rectangle = length × breadth = 20 × 15 = 300 squared feet.