The Oak View Middle School cheer squad made a banner to bring out for a football game against their school's biggest rival. The banner is shaped like a triangle with an area of 20 square feet. The banner is 4 feet tall.Which equation can you use to find the length of the banner's base, b?Choices:(A)20=21b(4)(B)20=4bWhat is the length of the banner's base?Write your answer as a whole number or decimal. Do not round.___ feet
Q. The Oak View Middle School cheer squad made a banner to bring out for a football game against their school's biggest rival. The banner is shaped like a triangle with an area of 20 square feet. The banner is 4 feet tall.Which equation can you use to find the length of the banner's base, b?Choices:(A)20=21b(4)(B)20=4bWhat is the length of the banner's base?Write your answer as a whole number or decimal. Do not round.___ feet
Calculate Area Formula: To find the length of the base of the triangle, we need to use the formula for the area of a triangle, which is Area=21×base×height. Here, the area is given as 20 square feet and the height as 4 feet.
Substitute Values: Plugging the values into the formula, we get 20=21×b×4. To isolate b, we first simplify the right side of the equation: 21×4=2, so the equation becomes 20=2b.
Solve for Base: Next, we solve for b by dividing both sides of the equation by 2. So, b=220=10.
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