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Tatiana [17]
3 years ago
13

PLEASE HELP! M is the centroid of triangle ABC. (Look at pic). Show your work and explain your steps please.

Mathematics
1 answer:
stepladder [879]3 years ago
3 0

*MB:

Since M is the centroid of ΔABC, we know that:

MB= 2MD

=> MB= 2 × 13

=> MB= 26

*ME

Since M is the centroid of ΔABC, we know that:

MC= 2ME

=> ME= MC/2

=> ME= 30/2

=> ME= 15  

*MF:

Since M is the centroid of ΔABC, we know that:

=> MF= 1/3AF

=> MF= 24/3= 8

(I'm kind of amazed that they don't teach you this rule in your country :))))

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Answer:

AB = 5.6 cm

Step-by-step explanation:

From the question given above, the following data were obtained:

Angle θ = 62°

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The lenght of side AB can be obtained by using Cos θ ratio. This is illustrated:

Cos θ = Adjacent / Hypothenus

Cos 62 = AB / 12

0.4695 = AB / 12

Cross multiply

AB = 0.4695 × 12

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Thus, length AB is 5.6 cm

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