We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive pseudonymised information about your use of our website. cookie policy and privacy policy.
 
+0  
 
+1
246
1
avatar+1432 

In isosceles right triangle ABC, point D is on hypotenuse line BC such that line AD is an altitude of triangle ABC and DC = 5. What is the area of triangle ABC?

 

I've been working on this one for a while.  Any help is appeciated!

 Feb 22, 2018
 #1
avatar+18138 
+1

Since it is an isoc right triangle the two legs are the same length (and the angles of the triangle are 90 45 45)       Line DC = 5    Line BD = 5    AND Line AD will equal 5   

Area of smaller triangle = 1/2 (5)(5)        Total area will be the sum of the two small triangles (which are identical)    2 x 1/2 5 x 5 = 25 units^2

 Feb 22, 2018

19 Online Users

avatar
avatar