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3 years ago

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In triangle ABC, the measure of angle ABC is 42 degrees and the measure of angle BAC is 64. What is the measure of angle BCA? Wr

ite an expression to find the measure of angle BCA.

1 answer:

love history [14]3 years ago

6 0

Answer:

Step-by-step explanation:

The sum of interior angles of a triangle = 180°

Therefore, ∠ABC + ∠BAC + ∠BCA = 180°

⇒ 42 + 64 + ∠BCA = 180°

⇒ ∠BCA = 180 - 42 - 64

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vladimir1956 [14]

Answer:

Step-by-step explanation:

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A team is excavating an archeological site. The original plan was to excavate a rectangular area 35 ft long

nikitadnepr [17]

Answer:

Part 1) The length of the new rectangle is $87.5\ ft$

Part 2) The area of the new rectangle is $4,375\ ft^{2}$

Step-by-step explanation:

we know that

If two rectangles are similar, then the ratio of its corresponding sides is proportional

step 1

Find the length of the new rectangle

Let

L-----> the length of the new rectangle

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step 2

Find the area of the new rectangle

we know that

The area of the rectangle is

$A=LW$

we have

$L=87.5\ ft$

$W=50\ ft$

substitute

$A=(87.5)(50)=4,375\ ft^{2}$

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